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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "Hal.h"
#include "HalLog.h"
#include <windows.h>
using namespace mozilla::hal;
namespace mozilla {
namespace hal_impl {
bool SetProcessPrioritySupported() { return true; }
void SetProcessPriority(int aPid, ProcessPriority aPriority) {
HAL_LOG("WindowsProcessPriority - SetProcessPriority(%d, %s)\n", aPid,
ProcessPriorityToString(aPriority));
nsAutoHandle processHandle(
::OpenProcess(PROCESS_SET_INFORMATION, FALSE, aPid));
#ifdef DEBUG
if (!processHandle) {
printf_stderr("::OpenProcess() failed with error %#08x\n",
::GetLastError());
}
#endif // DEBUG
MOZ_ASSERT(processHandle);
if (processHandle) {
DWORD priority = NORMAL_PRIORITY_CLASS;
if (aPriority == PROCESS_PRIORITY_BACKGROUND) {
priority = IDLE_PRIORITY_CLASS;
} else if (aPriority == PROCESS_PRIORITY_BACKGROUND_PERCEIVABLE) {
priority = BELOW_NORMAL_PRIORITY_CLASS;
}
::SetPriorityClass(processHandle, priority);
}
HAL_LOG("WindowsProcessPriority - priority set to %d for pid %d\n", aPriority,
aPid);
}
} // namespace hal_impl
} // namespace mozilla
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